21061998

素因数分解:

$2^1\times 3^3\times {\mathrm{97}}^1\times {\mathrm{4021}}^1$

素因数の和:4129

約数の個数: 32

約数和(自身を含む): 47298720

約数和(自身を除く): 26236722

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 97, 194, 291, 582, 873, 1746, 2619, 4021, 5238, 8042, 12063, 24126, 36189, 72378, 108567, 217134, 390037, 780074, 1170111, 2340222, 3510333, 7020666, 10530999, 21061998]

約数ペア:

[(1, 21061998), (2, 10530999), (3, 7020666), (6, 3510333), (9, 2340222), (18, 1170111), (27, 780074), (54, 390037), (97, 217134), (194, 108567), (291, 72378), (582, 36189), (873, 24126), (1746, 12063), (2619, 8042), (4021, 5238)]